Monorchism

Monorchism
Monorchism
Classification and external resources
ICD-10 Q55.0
ICD-9 752.89

Monorchism is the state of having only one testicle within the scrotum.

Contents

Causes

This can be due to:

  • One testicle not descending into the scrotum during normal embryonic or fetal development (3–4% of 'normal' live births), also known as: undescended testis or cryptorchidism. In this case the testis is within the abdominal cavity, somewhere along the normal route of descent — most commonly, within the inguinal canal. Such a testis has an increased risk of malignancy.
  • One testicle may disappear during development (the so called vanishing testis) due to some intrauterine insult. This is thought most likely vascular, such as testicular torsion.
  • One testicle being surgically removed through Orchidectomy.
  • One testicle may be injured.

Notable cases

Due to testicular cancer

Due to injury

  • Adolf Hitler, Chancellor in Germany (possibly, see Hitler's possible monorchism)
  • Dave England, Jackass cast member.
  • Mao Zedong, known as Chairman Mao, Chinese revolutionary.
  • Francisco Franco, Dictator of Spain.[6]
  • Troy Bayliss, world superbike champion in 2001, 2006 and 2008. In 2007 he lost a testicle during a race at Doninghton Park [7].
  • Barnacle Jim, American cross country face bike champion in 2007 and 2010.
  • Hermann Goering, leading member of the Nazi party

Monorchism in nonhuman animals

Although extremely rare, monorchism has been observed to be characteristic of some animal species, notably in beetles.[8]

Terminology

An individual having monorchism can be referred to as monorchid.

See also

References



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Look at other dictionaries:

  • monorchism — noun failure of one testes to descend into the scrotum • Syn: ↑monorchidism • Hypernyms: ↑cryptorchidy, ↑cryptorchidism, ↑cryptorchism * * * noun see monorchidism * * * monorc …   Useful english dictionary

  • monorchism — A condition in which only one testis is apparent, the other being absent or undescended. SYN: monorchia, monorchidism. [mono + G. orchis, testis] * * * n. absence of one testis. This is usually due to failure of one testicle to descend into the… …   Medical dictionary

  • monorchism — n. condition of having one testis …   English contemporary dictionary

  • monorchism — mon·or·chism …   English syllables

  • monorchism — n. absence of one testis. This is usually due to failure of one testicle to descend into the scrotum before birth. The term is sometimes used for the condition in which one testicle has been removed surgically or destroyed by injury or disease.… …   The new mediacal dictionary

  • Монорхизм (Monorchism) — отсутствие одного яичка. Обычно монорхизм бывает связан с неполным опусканием яичка в мошонку перед рождением ребенка. Данный термин иногда применяется также в случае, если одно яичко было удалено хирургически или повреждено в результате травмы… …   Медицинские термины

  • МОНОРХИЗМ — (monorchism) отсутствие одного яичка. Обычно монорхизм бывает связан с неполным опусканием яичка в мошонку перед рождением ребенка. Данный термин иногда применяется также в случае, если одно яичко было удалено хирургически или повреждено в… …   Толковый словарь по медицине

  • Adolf Hitler — Hitler redirects here. For other uses, see Hitler (disambiguation). Adolf Hitler …   Wikipedia

  • Cryptorchidism — Classification and external resources ICD 10 Q53 …   Wikipedia

  • monorchia — SYN: monorchism. * * * mon·or·chia (mon orґke ə) monorchism …   Medical dictionary

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